Hi Derek It should not really matter too much as long as the elements are fairly recent - anyway your measurements should not be biased by what the element set says -- as long as you can identify your starfield and have the time the element set should not play a role other than giving you an idea where the starfield is. Cheers Greg ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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